One of the four major ligaments that are found in the knee joint is called the anterior cruciate ligament (ACL). It aids in the preservation of the rotational stability of the knee and stops the tibia (also known as the shinbone) from sliding in front of the femur (thighbone). The ACL is particularly vulnerable to injury during athletic activity or as the result of impact, and a torn ACL is a common injury in athletes of all levels. It is especially common in sports like soccer, basketball, skiing, and football that require a significant amount of leg planting, cutting, and pivoting, such as those. In order to repair an ACL tear, surgery is typically necessary.
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